The issue I have with the report is the lack of investigation into the Right Hand fuel tank indication of being half full but the actual fuel found to be only 25 L. (total).
Read this:
https://www.avweb.com/news/maint/182907-1.html
HZE was produced in 1985 so some of that information is irrelevant but the filling of the tanks - very!
A little bit of research added to the ATSB report would have provided valuable knowledge to the readers.
And that would help keep your head in the game.........